JPS5761354A - Clock regeneration system in spectrum diffusing communication - Google Patents
Clock regeneration system in spectrum diffusing communicationInfo
- Publication number
- JPS5761354A JPS5761354A JP55136117A JP13611780A JPS5761354A JP S5761354 A JPS5761354 A JP S5761354A JP 55136117 A JP55136117 A JP 55136117A JP 13611780 A JP13611780 A JP 13611780A JP S5761354 A JPS5761354 A JP S5761354A
- Authority
- JP
- Japan
- Prior art keywords
- inputted
- sent
- code
- clock
- correlator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/04—Speed or phase control by synchronisation signals
- H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
- H04L7/043—Pseudo-noise [PN] codes variable during transmission
Abstract
PURPOSE:To stabilize the operation without deterioration of error ratio of bits, by regenerating a clock by code period sent from a local code generator. CONSTITUTION:Data diffused by a PN code is added to a input terminal 1 and is sent to a correlator 2. Then, codes sent from a local code generator 3 are also supplied to the correlator 2 and regenerated data are inputted to integrator 6 and 7. While, the output sent from the local code generator 3 is inputted to a code detector 4, and the code detector 4 outputs pulses at every a period and inputs to a clock regenerator 5. Integrators 6 and 7 integrate and discharge the regenerated data from the correlator 2 by using clocks C1 and C2 whose phase is slipped by 180 deg.. The outputs of integrators 6 and 7 are inputted to respective adders 8 and 9. The outputs are compared with respective added values by a comparator 10. A clock inputted to a integrator having large output of added value is selected by a gate circuit 11 and is passed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55136117A JPS5761354A (en) | 1980-09-30 | 1980-09-30 | Clock regeneration system in spectrum diffusing communication |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55136117A JPS5761354A (en) | 1980-09-30 | 1980-09-30 | Clock regeneration system in spectrum diffusing communication |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5761354A true JPS5761354A (en) | 1982-04-13 |
JPS6237857B2 JPS6237857B2 (en) | 1987-08-14 |
Family
ID=15167692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55136117A Granted JPS5761354A (en) | 1980-09-30 | 1980-09-30 | Clock regeneration system in spectrum diffusing communication |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5761354A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55143863U (en) * | 1979-04-05 | 1980-10-15 | ||
JPH01117440A (en) * | 1987-10-30 | 1989-05-10 | Kenwood Corp | Optimum clock forming device for data receiver |
-
1980
- 1980-09-30 JP JP55136117A patent/JPS5761354A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55143863U (en) * | 1979-04-05 | 1980-10-15 | ||
JPH01117440A (en) * | 1987-10-30 | 1989-05-10 | Kenwood Corp | Optimum clock forming device for data receiver |
Also Published As
Publication number | Publication date |
---|---|
JPS6237857B2 (en) | 1987-08-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR840007331A (en) | Receiver | |
CA1093697A (en) | Digital-to-analogue converter | |
JPS5761354A (en) | Clock regeneration system in spectrum diffusing communication | |
JPS5799821A (en) | Digital-to-analogue converter | |
DK606884D0 (en) | CRYSTALLINIC SILICOPHOSPHOALUMINATES (MCM-5), CATALYST CONTAINING THESE AND USING THESE AS CATALYST | |
JPS56152359A (en) | Orthogonal modulator for fm | |
JPS5336163A (en) | Time series waveform coding unit | |
JPS52142453A (en) | Block error correction processing system | |
JPS52103902A (en) | Code error correcting method | |
Zrilic et al. | Arithmetic ternary operations on delta-modulated signals and their application in the realization of digital filters | |
JPS52147022A (en) | Key input system | |
JPS52102773A (en) | Digital rate meter | |
JPS57207457A (en) | Sc bit superimposing system | |
DK606584A (en) | CRYSTALLINIC SILICOPHOSPHOALUMINATES (MCM-1), CATALYSTS CONTAINING THESE AND USING THESE AS CATALYSTS | |
JPS56101614A (en) | Binary code converting method | |
JPS5338929A (en) | Intermittent signal output method and device | |
SU1132359A1 (en) | Delta modulation device | |
DK606684A (en) | CRYSTALLINIC SILICOPHOPHALUMINATES (MCM-3), CATALYST CONTAINING THESE AND USING THESE AS CATALYST | |
JPS57207458A (en) | Sc bit superimposing system | |
JPS5318492A (en) | Denitration method | |
JPS5413242A (en) | Generation circuit for circulation code | |
JPS56168459A (en) | Searching system for faulty repeater | |
JPS5595155A (en) | Operation check system for counter | |
JPS6473911A (en) | Digital filter | |
Michelson | On the computation of the probability of post-decoding error events for block codes(Corresp.) |